linux-kernel - Re: [PATCH v6 10/16] mm: replace vm_lock and detached flag with a reference count

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Message-ID: <CAJuCfpE4nCemqSQf51D4h_bZt=_tjMBd=eXgN4YYrV6E4AE0ew@mail.gmail.com>
Date: Wed, 18 Dec 2024 16:47:05 -0800
From: Suren Baghdasaryan <surenb@...gle.com>
To: Andrew Morton <akpm@...ux-foundation.org>
Cc: "Liam R. Howlett" <Liam.Howlett@...cle.com>, Peter Zijlstra <peterz@...radead.org>, willy@...radead.org, 
	lorenzo.stoakes@...cle.com, mhocko@...e.com, vbabka@...e.cz, 
	hannes@...xchg.org, mjguzik@...il.com, oliver.sang@...el.com, 
	mgorman@...hsingularity.net, david@...hat.com, peterx@...hat.com, 
	oleg@...hat.com, dave@...olabs.net, paulmck@...nel.org, brauner@...nel.org, 
	dhowells@...hat.com, hdanton@...a.com, hughd@...gle.com, 
	lokeshgidra@...gle.com, minchan@...gle.com, jannh@...gle.com, 
	shakeel.butt@...ux.dev, souravpanda@...gle.com, pasha.tatashin@...een.com, 
	klarasmodin@...il.com, corbet@....net, linux-doc@...r.kernel.org, 
	linux-mm@...ck.org, linux-kernel@...r.kernel.org, kernel-team@...roid.com
Subject: Re: [PATCH v6 10/16] mm: replace vm_lock and detached flag with a
 reference count

On Wed, Dec 18, 2024 at 4:36 PM Andrew Morton <akpm@...ux-foundation.org> wrote:
>
> On Wed, 18 Dec 2024 13:53:17 -0800 Suren Baghdasaryan <surenb@...gle.com> wrote:
>
> > > There is a loop for_each_vma_range() that does:
> > >
> > > vma_start_write(next);
> > > mas_set(mas_detach, vms->mas_count++);
> > > mas_store_gfp(mas_detach, next, GFP_KERNEL);
> >
> > Ah, ok I see now. I completely misunderstood what for_each_vma_range()
> > was doing.
>
> I'll drop the v6 series from mm-unstable.

Sounds good. v7 will be quite different.